Two portmanteau tools with significant definition gaps. Both tools combine multiple operations (list, create, update, delete, etc.) into single endpoints via an 'operation' parameter, violating the single-responsibility principle. Schemas are present with type definitions, but descriptions lack LLM-optimization guidance. Parameter descriptions are generic and do not explain when to use each operation or how operations relate. No output schemas documented. Error handling and recovery guidance absent. Tool names (vla_todos, vla_calendar) do not follow verb_noun convention and are domain-specific rather than action-oriented.

• Split vla_todos into atomic tools: list_todos, create_todo, update_todo, delete_todo, complete_todo, get_todo_stats. Each tool has one clear responsibility and a verb_noun name. LLMs can compose them as needed.
• Split vla_calendar into atomic tools: list_events, create_event, update_event, delete_event, get_today_events, get_upcoming_events. Follow verb_noun naming convention.
• Document output schemas for each tool. E.g., list_todos returns {"todos": [{"id": string, "title": string, "category": string, "priority": string, "due_date": string, "status": string, "created_at": string}], "total": integer, "limit": integer}.
• Add enum constraints to category and priority parameters. E.g., category: {"enum": ["personal", "work", "shopping", "health", "pets", "home"]}, priority: {"enum": ["low", "medium", "high", "urgent"]}.
• Expand parameter descriptions to explain operation-specific requirements. E.g., 'title: Required for create operation. Ignored for list, update (unless changing title), delete, complete, stats operations.' Document which parameters are required/optional for each operation.